full wave finite difference time domain simulations
PubMedCentral-PMC5741097.pdf
... Time domain finite difference simulations are used extensively to simulate wave ...the wave field on a discrete domain with a grid spacing that is typically on the ...
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Hybrid Acoustic Modelling of Historic Spaces Using Blender
... platform. Finite Difference Time Domain and ray tracing methods are used, with the FDTD method constrained to low-frequencies enabling the simulation of wave characteristics at ...
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Mathematical Modeling of Single Phase Flow and Particulate Flow Subjected to Microwave Heating
... The finite difference time domain (FDTD) method developed by Yee [25] has been used to provide a full description of electromagnetic scattering and absorption and gives detailed spatial ...
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Source excitation strategies for obtaining impulse responses in finite difference time domain room acoustics simulation
... The finite difference time domain method (FDTD) is a discrete spatio-temporal numerical simulation method that has been shown as being appropriate for modeling acoustic wave propaga- ...
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Optimally Accurate Second-Order Time-Domain Finite-Difference Scheme for Acoustic, Electromagnetic, and Elastic Wave Modeling
... normalized time step ∆t c is equal to ...erence time step ∆t are ...plane wave boundary con- dition is used to truncate the ...plane wave is sent from the top of the medium and is observed as ...
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Scale-Dependent Light Scattering Analysis of Textured Structures on LED Light Extraction Enhancement Using Hybrid Full-Wave Finite-Difference Time-Domain and Ray-Tracing Methods
... index difference between the LED material and the surrounding ...optical simulations and then used in the manufacture of devices, reducing unnecessary trial and error and cost while increasing ...
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Investigation of Wave Propagation in Different Dielectric Media by Using Finite Difference Time Domain (FDTD) Method
... memory. This description holds true for 1-D, 2-D, and 3-D FDTD techniques. When multiple dimensions are considered, calculating the numerical curl can become complicated. FDTD has advantages of Inhomogeneous media is ...
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Laser-seeding dynamics with few-cycle pulses: Maxwell-Bloch finite-difference time-domain simulations of terahertz quantum cascade lasers
... the wave functions of the two states are centered around the same point in ...performed simulations with realistic values of this parameter (X = 16 nm for the active region under investigation) and found ...
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A higher order perfectly matched layer formulation for finite-difference time-domain seismic wave modeling
... PMLs. Simulations were performed using MATLAB, running on a laptop PC with a ...tional time taken for the first-order test case to run was 91 s, whereas the second-order test case took 140 ...the ...
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Sub-Nanosecond Electromagnetic-Micromagnetic Dynamic Simulations Using the Finite-Difference Time-Domain Method
... small time step, and hence long simulation times, dictated by the Courant stability requirement when modeling small structures similar to those considered in this ...long simulations times may be reduced by ...
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An efficient finite difference time domain algorithm for band structure calculations of Phononic crystal
... So conventional FDTD method requires computation of components of stress tensor which are only used for updating components of displacement. By derivation of displacement- based forms of elastic wave equations and ...
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Understanding the Finite-Difference Time-Domain Method. John B. Schneider
... The finite-difference time-domain (FDTD) method is arguably the simplest, both conceptually and in terms of implementation, of the full-wave techniques used to solve problems in ...
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Finite-Difference Time-Domain Simulations on Overgrown InGaN/GaN Multiple Quantum Well (MQW) Light Emitting Diode (LED).
... Perhaps one of the frequent tasks performed using this software package is to compute the transmission or scattering spectra from a finite arbitrary structure in response to some stimulus as a function of input ...
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Development Of Finite-Difference Time-Domain (FDTD)/ Periodic Boundary Condition (PBC) Software For Modeling Microwave Absorber Material At Ku Band Frequency
... For students, it might be impossible for them to buy the license of the commercial software. Some of them really need the software to do their assignment and project. Therefore they need to go to laboratory that provides ...
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Waveguide Simulation Using the High-Order Symplectic Finite-Difference Time-Domain Scheme
... traditional finite-difference time- domain (FDTD) method [1, 2], which is explicit and second-order accurate in both space and time, has been widely applied to modeling and simulation ...
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Simulations of P SV wave scattering due to cracks by the 2 D finite difference method
... SH wave scattering by randomly distributed 2-D cracks and determined the scattering attenuation and dis- persion experimentally, thus validating the FAT of Kawa- hara and Yamashita (1992) as long as the crack ...
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Analysis on Research and Education for Electromagnetic-Applied Subjects with Finite Difference Time Domain Theory
... FDTD simulations with adding a device between the free space region for measurement of transmittance and reflectance for semiconductor material from optical purses source of ...The time steps for simulation ...
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Improvement of Computational Performance of Implicit Finite Difference Time Domain Method
... LN time steps. With the OpenMP code, the CPU time has been greatly reduced when CFLN = 1 and as expected, the most significant reduction in CPU time has been achieved when CFLN is ...
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A Study of Time-Domain and Frequency- Domain Techniques in Electromagnetics
... by finite number of unknown coefficients which are determined by converting ...While finite Element Method is suitable for solving differential equation, Method of the Moment on the hand solves integral ...
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A New SAW Device Simulator Based on Mason s Equivalent Circuit Model
... On the other hand, some Finite Element Model (FEM) tools; e.g., COMSOL [7], Coventor [8], ANSYS HFSS [9]; provide 3D view and 3D simulation for SAW devices. However, the higher the number of fingers is, the longer ...
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